Batus, which has offered to buy Farmers Group for $60 a share, said it intends to present a shareholders resolution at Farmers' May 20 annual meeting calling on the company's board to negotiate with Batus . . . Wells Fargo & Co. and Barclays Bank PLC said they have signed a definitive agreement for Wells Fargo to acquire Barclays Bank of California for $125.7 million in cash . . . Baker Hughes Inc. reported that the number of oil and gas rigs working in the United States rose by 10 this week to 978. A year ago the count was 839, the Houston-based firm said.